package com.itheima.service.mongo;

import com.itheima.domain.mongo.FocusUser;

import java.util.List;

public interface FocusUserService {
    void save(FocusUser focusUser);
    void delete(Long userId,Long focusUserId);

    // 根据id查询粉丝数量
    List<FocusUser> findAllById(Long userId);


    FocusUser findById(String focusUserId);
}
